Media Encoder / MOGRT render bug

Hello,

I have a complex MOGRT using heavy expressions and nested essential properties to build a calendar using JS calculations.

This MOGRT renders and exports perfectly in Premiere Pro 25.1.0. However, when using Media Encoder 25.1, all calculations are broken and the calendar fails to build.

So I figured : "well, let's prerender this part in Pr and ask Me to rely on prerendered files". But the results is the same, so I presume Media Encoder 25.1 doesn't use properly prerendered files when it is asked to. This may be a serious issue for editors relying on this feature to speed up their exports.

Computer : Mac Studio 2023 - 32 GB RAM - 512 GB SSD
MacOS Sequoia 15.3.2

Thanks for your support,